On Sat, 2014-03-22 at 22:01 +0100, Andreas Sturmlechner wrote: > Original Message from: Ben Hutchings <b...@decadent.org.uk> > > > > Andreas, could you test whether this regression is also present in > > 3.2.55? This patch is based on my backport for 3.2.y. > > > > 3.2.55 is OK here.
One piece of my backport to 3.2.y went missing in the forward-port to
3.4.y. Can you test 3.4.83 with this patch on top?
Ben.
---
From: Ben Hutchings <b...@decadent.org.uk>
Date: Tue, 25 Mar 2014 02:49:14 +0000
Subject: iwlwifi: Complete backport of "iwlwifi: always copy first 16 bytes of
commands"
Linux 3.4.83 included an incomplete backport of commit
8a964f44e01ad3bbc208c3e80d931ba91b9ea786 ('iwlwifi: always copy first
16 bytes of commands') which causes a regression for this driver.
This is the missing piece.
Reported-by: Andreas Sturmlechner <andreas.sturmlech...@gmail.com>
Cc: Johannes Berg <johannes.b...@intel.com>
Cc: Emmanuel Grumbach <emmanuel.grumb...@intel.com>
Cc: Jianguo Wu <wujian...@huawei.com>
Signed-off-by: Ben Hutchings <b...@decadent.org.uk>
---
--- a/drivers/net/wireless/iwlwifi/iwl-trans-pcie-tx.c
+++ b/drivers/net/wireless/iwlwifi/iwl-trans-pcie-tx.c
@@ -825,14 +825,15 @@ static int iwl_enqueue_hcmd(struct iwl_trans *trans,
struct iwl_host_cmd *cmd)
trace_idx = 1;
#endif
+ /* map the remaining (adjusted) nocopy/dup fragments */
for (i = 0; i < IWL_MAX_CMD_TFDS; i++) {
- if (!cmd->len[i])
+ if (!cmdlen[i])
continue;
if (!(cmd->dataflags[i] & IWL_HCMD_DFL_NOCOPY))
continue;
phys_addr = dma_map_single(trans->dev,
- (void *)cmd->data[i],
- cmd->len[i], DMA_BIDIRECTIONAL);
+ (void *)cmddata[i],
+ cmdlen[i], DMA_BIDIRECTIONAL);
if (dma_mapping_error(trans->dev, phys_addr)) {
iwlagn_unmap_tfd(trans, out_meta,
&txq->tfds[q->write_ptr],
--
Ben Hutchings
Make three consecutive correct guesses and you will be considered an expert.
signature.asc
Description: This is a digitally signed message part
